PHP通过eml邮件文件提取图片附件

最新推荐文章于 2024-01-12 18:28:37 发布

原创最新推荐文章于 2024-01-12 18:28:37 发布 · 5k 阅读

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这是一个PHP脚本，用于从eml文件中提取并保存图片附件。通过读取eml文件内容，解析邮件内容类型，识别image/gif和image/jpeg类型的附件，并使用base64_decode解码附件内容，然后将图片保存到指定路径。

<?php

// Author: YangYu niceses@126.com

// msn: yangyucn@live.cn
// gets parameters

if(isset($_GET['path'])) {

define(EML_FILE_PATH,$_GET['path']);

} else {

define(EML_FILE_PATH,'./eml/');

}

$filename = $_GET['filename'] ? $_GET['filename'] : '';

if ($filename == '') $filename = '1.eml';
$eml_file = EML_FILE_PATH.$filename;

if (!($content = fread(fopen(EML_FILE_PATH.$filename, 'rb'), filesize(EML_FILE_PATH.$filename))))

die('File not found ('.EML_FILE_PATH.$filename.')');

$content = str_replace("/r", "", $content);

$seperator = "------=_";

$content = explode($seperator, $content);

$items = array();

$keyid = 0;

foreach($content as $item) {

if(substr($item, 0, 9) == "NextPart_") {

$title = substr($item, 0, strpos($item, "/n"));

} elseif (substr($item, 0, 18) == " [Content-Type]") {

$title = substr($item, 0, strpos($item, ""));

} else {

$title="Headers";

}

$item = substr($item, strpos($item, "/n")+1);

if(substr(trim($item), 0, 4) == "id <") {$item = substr($item, strpos($item, "/n")+1);}

$header = substr($item, 0, strpos($item, "/n/n"));

$body = substr($item, strpos($item, "/n/n")+2);

$headerlines = explode("/n", $header);

foreach($headerlines as $line) {

if(substr($line, 0, 1) == "/t") {

$headers[$linetitle] .= "/n".$line;

} else {

$linetitle = substr($line, 0, strpos($line, ":"));

$headers[$linetitle] = substr($line, strpos($line, ":")+1);

}

$ct_end = strpos($headers['Content-Type'], ";") ? strpos($headers['Content-Type'], ";") : strlen($headers['Content-Type']);

$contenttype = trim(substr($headers['Content-Type'], 0, $ct_end));

if($contenttype == "text/plain") {

$keyname = "text";

} else {

$keyname = $keyid;

}

$items[$keyname] = array("partname" => $title, "headers" => $headers, "content-type" => $contenttype, "body" => $body);

if(isset($plaintext) && $plaintext === true) {

$items[0] = array("partname" => "Headers", "headers" => $headers, "content-type" => $contenttype, "body" => $body);

}

unset($headers);

$keyid++;

}

foreach($items as $key=>$part) {

if(

$part['content-type'] != "" && (

$part['content-type'] == 'image/gif' ||
$part['content-type'] == 'image/jpeg')) {

$attachments_name = EML_FILE_PATH.'img/'.str_replace('"','',getValue($part['headers']['Content-Disposition'],'filename=',''));

   //————————————————debug——————————————————————————
   //echo 'yangyu'.$part['body'].'yangyu';exit();
   //————————————————debug——————————————————————————
   writeover($attachments_name,base64_decode($part['body']));

}

die('yangyu'); //——————debug——————

function writeover($filename,$data,$method="rb+",$iflock=1,$check=1,$chmod=1){
$check && strpos($filename,'..')!==false && exit('Forbidden');
touch($filename);
$handle = fopen($filename,$method);
$iflock && flock($handle,LOCK_EX);
fwrite($handle,$data);
$method=="rb+" && ftruncate($handle,strlen($data));
fclose($handle);
$chmod && @chmod($filename,0777);
}

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